I have train filters setup so that color A train goes to circles, color B goes to squares, etc. All on same route. For some reason square keeps showing up in the output even though I have filters to prevent this. This is merely visual, the train filters are correctly working.
This bug happens for all 4 basic shapes, only square shows up mixed in their output visually. No other mixes. All filters work as expected, again only visual.
Have tried breaking and replacing rails, still appears, have tried changing the train color / corresponding filter, still appears. Am unable to fix.